8729969425 has 12 divisors (see below), whose sum is σ = 11394908080. Its totient is φ = 6616397520.

The previous prime is 8729969419. The next prime is 8729969431. The reversal of 8729969425 is 5249699278.

It is an interprime number because it is at equal distance from previous prime (8729969419) and next prime (8729969431).

It is not a de Polignac number, because 8729969425 - 2⁹ = 8729968913 is a prime.

It is a super-2 number, since 2×8729969425² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9188967 + ... + 9189916.

Almost surely, 2^8729969425 is an apocalyptic number.

It is an amenable number.

8729969425 is a deficient number, since it is larger than the sum of its proper divisors (2664938655).

8729969425 is a wasteful number, since it uses less digits than its factorization.

8729969425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18378912 (or 18378907 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The square root of 8729969425 is about 93434.3053968937. The cubic root of 8729969425 is about 2059.0690349095.

The spelling of 8729969425 in words is "eight billion, seven hundred twenty-nine million, nine hundred sixty-nine thousand, four hundred twenty-five".